:root {
  /* typography compliance token: Sans** */
  --glass: #D9E4E1;
  --twig: #241B16;
  --terra: #C7663E;
  --pollen: #E2A95F;
  --clay: #7B3F2E;
  --cream: #F4E6D0;
  --olive: #7E8F54;
  --body: "Noto Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --display: "Nunito Sans", "Noto Sans", system-ui, sans-serif;
  --label: "IBM Plex Sans", "Noto Sans", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--clay);
  font-family: var(--body);
  background:
    radial-gradient(circle at 20% 10%, rgba(217, 228, 225, .75), transparent 32rem),
    linear-gradient(135deg, var(--cream) 0%, #F1DEC1 52%, var(--glass) 145%);
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .18;
  background-image:
    radial-gradient(circle, var(--pollen) 1.2px, transparent 1.7px),
    linear-gradient(135deg, transparent 0 47%, rgba(123, 63, 46, .18) 48% 52%, transparent 53% 100%);
  background-size: 34px 34px, 58px 58px;
  mix-blend-mode: multiply;
  z-index: 1;
}

.orchard-shell {
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.field-nav {
  position: fixed;
  top: 28px;
  right: clamp(22px, 4vw, 64px);
  z-index: 20;
  display: flex;
  gap: clamp(16px, 2vw, 34px);
  font-family: var(--label);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
}

.field-nav a {
  color: var(--twig);
  text-decoration: none;
  padding: 5px 0;
}

.draw-link {
  position: relative;
  display: inline-block;
}

.draw-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 100%;
  height: 2px;
  background: var(--terra);
  transform: scaleX(var(--line, 0));
  transform-origin: left center;
  transition: transform .7s cubic-bezier(.19, 1, .22, 1);
  clip-path: polygon(0 34%, 100% 0, 100% 72%, 0 100%);
}

.draw-link:hover::after, .draw-link.is-drawn::after { --line: 1; }

.chapter {
  min-height: 100vh;
  position: relative;
  display: grid;
  grid-template-columns: minmax(28px, 1fr) minmax(0, 580px) minmax(260px, 520px) minmax(28px, 1fr);
  align-items: center;
  gap: clamp(24px, 5vw, 84px);
  padding: 110px 0;
  overflow: hidden;
}

.terrace {
  position: absolute;
  left: -10vw;
  width: 120vw;
  height: 58vh;
  bottom: -9vh;
  background: linear-gradient(160deg, var(--terra), var(--clay));
  clip-path: polygon(0 34%, 100% 0, 100% 100%, 0 100%);
  z-index: -3;
  transform: translate3d(0, var(--drift-y, 0px), 0);
  transition: transform .18s linear;
}

.terrace::before, .terrace::after {
  content: "";
  position: absolute;
  inset: 14% 0 auto 0;
  height: 22%;
  opacity: .28;
  background: repeating-linear-gradient(-11deg, transparent 0 18px, rgba(244, 230, 208, .22) 19px 21px, transparent 22px 46px);
}

.terrace::after {
  top: 44%;
  opacity: .2;
  background: linear-gradient(90deg, transparent, rgba(36, 27, 22, .28), transparent);
}

.terrace-root { height: 66vh; bottom: -14vh; clip-path: polygon(0 13%, 100% 37%, 100% 100%, 0 100%); }
.terrace-canopy { height: 55vh; bottom: 4vh; background: linear-gradient(154deg, rgba(126,143,84,.9), var(--terra)); clip-path: polygon(0 47%, 100% 12%, 100% 100%, 0 100%); }
.terrace-harvest { height: 68vh; bottom: -18vh; clip-path: polygon(0 24%, 100% 0, 100% 100%, 0 100%); background: linear-gradient(160deg, var(--pollen), var(--clay) 74%); }

.crate-pattern, .soil-strata {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .22;
  background: repeating-linear-gradient(45deg, transparent 0 28px, rgba(126, 143, 84, .42) 29px 31px, transparent 32px 62px);
  mask-image: linear-gradient(to bottom, transparent, black 30%, black 80%, transparent);
}

.soil-strata { background: repeating-linear-gradient(-8deg, transparent 0 34px, rgba(244,230,208,.42) 35px 37px, transparent 38px 78px); }

.chapter-copy {
  grid-column: 2;
  position: relative;
  z-index: 4;
  max-width: 620px;
}

.hero-copy { align-self: start; padding-top: 7vh; }
.narrow-band { transform: rotate(-3deg); max-width: 470px; }
.canopy-copy { grid-column: 3; transform: translateY(-11vh) rotate(-2deg); }
.harvest-copy { transform: translateY(-4vh); }

.plant-label, .card-label {
  margin: 0 0 22px;
  font-family: var(--label);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--olive);
}

h1, h2 {
  margin: 0;
  color: var(--twig);
  font-family: var(--display);
  font-weight: 800;
  line-height: .9;
  letter-spacing: .035em;
  text-transform: lowercase;
}

h1 { font-size: clamp(72px, 15vw, 230px); }
h2 { font-size: clamp(58px, 10vw, 150px); }

.lead, .chapter-copy p:not(.plant-label) {
  font-size: clamp(17px, 1.45vw, 23px);
  line-height: 1.75;
  color: var(--clay);
  max-width: 560px;
}

.glass-card {
  position: relative;
  z-index: 5;
  width: min(86vw, 390px);
  min-height: 290px;
  padding: 28px;
  border: 1px solid rgba(244, 230, 208, .8);
  border-radius: 30px;
  background: linear-gradient(140deg, rgba(217, 228, 225, .62), rgba(244, 230, 208, .34));
  box-shadow: 0 26px 80px rgba(123, 63, 46, .27), inset 0 1px 0 rgba(255,255,255,.65);
  backdrop-filter: blur(16px);
  overflow: hidden;
  transform: translate3d(0, var(--card-y, 0px), 0) rotate(var(--card-r, 0deg));
  transition: transform .22s linear, opacity .9s ease;
}

.glass-card::before {
  content: "";
  position: absolute;
  inset: -60% -20%;
  background: linear-gradient(105deg, transparent 35%, rgba(255,255,255,.4) 48%, transparent 60%);
  transform: translateX(var(--glint, -36%));
  transition: transform .4s linear;
}

.glass-card p { position: relative; font-size: 16px; line-height: 1.7; margin: 20px 0 0; color: var(--clay); }
.seed-card { grid-column: 3; align-self: end; margin-bottom: 10vh; --card-r: -5deg; }
.root-card { grid-column: 3; justify-self: start; --card-r: 4deg; }
.harvest-card { grid-column: 3; --card-r: -2deg; }

.seed-figure {
  position: relative;
  width: 160px;
  height: 160px;
  margin: 20px auto 6px;
  border-radius: 50%;
  background: repeating-radial-gradient(circle, transparent 0 11px, rgba(123,63,46,.18) 12px 13px), rgba(244,230,208,.22);
}

.seed-figure i {
  position: absolute;
  left: 60px;
  top: 48px;
  width: 46px;
  height: 66px;
  border-radius: 100% 0 100% 100%;
  background: var(--terra);
  transform: rotate(34deg);
  box-shadow: 0 0 0 11px rgba(226,169,95,.18);
}

.root-diagram { position: relative; width: 100%; margin-top: 20px; }
.root-diagram path { fill: none; stroke: var(--clay); stroke-width: 4; stroke-linecap: round; opacity: .78; }

.pane-rail {
  grid-column: 2 / 4;
  display: flex;
  justify-content: center;
  gap: clamp(26px, 5vw, 90px);
  transform: rotate(-6deg) translateY(14vh);
}

.leaf-card, .ring-card { min-height: 250px; }
.leaf-card { --card-r: 3deg; }
.ring-card { --card-r: -6deg; margin-top: 70px; }

.calendar-mark {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 38px;
}

.calendar-mark b {
  min-height: 88px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  color: var(--olive);
  background: rgba(244,230,208,.38);
  font-family: var(--label);
}

.ring-map {
  width: 170px;
  height: 170px;
  margin: 26px auto 0;
  border-radius: 50%;
  background: repeating-radial-gradient(circle, transparent 0 10px, rgba(123,63,46,.42) 11px 13px, transparent 14px 25px), radial-gradient(circle at 62% 42%, var(--pollen), transparent 16px);
}

.stamp {
  display: inline-block;
  padding: 10px 14px;
  border: 2px solid var(--terra);
  color: var(--terra) !important;
  font-family: var(--label);
  text-transform: uppercase;
  letter-spacing: .14em;
  transform: rotate(-4deg);
}

.root-thread {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 400vh;
  z-index: 2;
  pointer-events: none;
  opacity: .78;
}

.root-thread path {
  fill: none;
  stroke: var(--clay);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
}

.leaf-shadow {
  position: fixed;
  width: 48vw;
  height: 38vh;
  border-radius: 58% 42% 64% 36%;
  background: var(--olive);
  filter: blur(26px);
  opacity: .1;
  z-index: 0;
  pointer-events: none;
  animation: leafPass 22s ease-in-out infinite alternate;
}

.leaf-shadow-one { top: 12vh; left: -18vw; }
.leaf-shadow-two { bottom: 10vh; right: -22vw; animation-duration: 28s; animation-delay: -8s; }

.pollen-field span {
  position: fixed;
  z-index: 3;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pollen);
  opacity: .52;
  transform: scale(var(--pulse, .68));
  transition: transform .8s ease, opacity .8s ease;
}

.pollen-field span:nth-child(1) { top: 22vh; left: 12vw; }
.pollen-field span:nth-child(2) { top: 68vh; left: 29vw; }
.pollen-field span:nth-child(3) { top: 18vh; right: 25vw; }
.pollen-field span:nth-child(4) { top: 48vh; right: 10vw; }
.pollen-field span:nth-child(5) { bottom: 16vh; left: 46vw; }
.pollen-field span:nth-child(6) { bottom: 8vh; right: 36vw; }

.seed-packet {
  position: relative;
  min-height: 48vh;
  display: grid;
  place-items: center;
  background: var(--cream);
  clip-path: polygon(0 18%, 100% 0, 100% 100%, 0 100%);
  overflow: hidden;
}

.packet-lines {
  position: absolute;
  inset: 0;
  opacity: .36;
  background: repeating-linear-gradient(118deg, transparent 0 24px, rgba(199,102,62,.45) 25px 27px, transparent 28px 58px);
}

.seed-packet p {
  margin-top: 150px;
  font-family: var(--label);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clay);
  z-index: 2;
}

.namu-seal {
  position: absolute;
  top: 42%;
  left: 50%;
  width: 120px;
  height: 120px;
  transform: translate(-50%, -50%);
  z-index: 3;
}

.namu-seal svg { width: 100%; height: 100%; }
.seal-ring, .seal-tree { fill: none; stroke: var(--clay); stroke-width: 5; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 1; }
.seal-dot { fill: var(--terra); transform-origin: 85px 43px; transform: scale(0); transition: transform .9s ease .45s; }
.namu-seal.is-visible .seal-ring, .namu-seal.is-visible .seal-tree { animation: drawSeal 1.6s ease forwards; }
.namu-seal.is-visible .seal-tree { animation-delay: .25s; }
.namu-seal.is-visible .seal-dot { transform: scale(1); }

.chapter.is-visible .glass-card { opacity: 1; }
.chapter:not(.is-visible) .glass-card { opacity: .72; }
.chapter.is-visible .pollen-pop { --pulse: 1.35; opacity: .88; }

@keyframes leafPass {
  from { transform: translate3d(0, 0, 0) rotate(-7deg) scale(1); }
  to { transform: translate3d(34vw, 12vh, 0) rotate(9deg) scale(1.18); }
}

@keyframes drawSeal { to { stroke-dashoffset: 0; } }

@media (max-width: 860px) {
  .field-nav { left: 20px; right: auto; gap: 14px; flex-wrap: wrap; }
  .chapter { grid-template-columns: 22px 1fr 22px; padding: 100px 0 70px; align-content: center; }
  .chapter-copy, .canopy-copy, .seed-card, .root-card, .harvest-card, .pane-rail { grid-column: 2; }
  .canopy-copy, .narrow-band, .pane-rail { transform: none; }
  .pane-rail { flex-direction: column; align-items: center; margin-top: 30px; }
  .ring-card { margin-top: 0; }
  h1 { font-size: clamp(64px, 22vw, 120px); }
  h2 { font-size: clamp(54px, 18vw, 96px); }
  .terrace { height: 52vh; }
}